$message is used to store variable data. $$message can be used to store variable of a variable. Data stored in $message is fixed while data stored in $$message can be changed dynamically. E.g. $var1 = ‘Variable 1’ $$var1= ‘variable2’. This can be interpreted as $ Variable 1=‘variable2’; For me to print value of both variables, I will write $var1 $($var1)
PHP
Topic: Variables
Explain the difference between $message and $$message.
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